NGHIÊN CỨU, CHẾ TẠO VÀ MÔ PHỎNG MÁY TẠO SÓNG HAI CHIỀU TRONG PHÒNG THÍ NGHIỆM

Tóm tắt

2-D wave makers often use piston and flap types in laboratories. With regard to modern makers, an automatic control system could calculate and create a necessary wave that can be applied for multi purpose such as river, harbor or ocean engineering. This paper presents the principle operation, design, fabrication of 2-D wave maker with Piston type. The experimental data, numerical modelling and theretical fomular would be used to assess the wave parameters that obtain the 2-D wave maker operation. The result shows that the differences between each method are in 7%. Based on these comparisons, the numerical method and experimental study could be combined to estimate the wave impact on hydraulic structure in laboratory or design process.

Keywords: Wave maker; wave flume; numerical modelling; Vof model; Reynolds average equations; dynamic mesh modelling.

Received: July 13^th, 2016, revised: July 27^th, 2016, accepted: January 16^th, 2017